Bug: Double braces add a question mark `?` between the opening braces

Describe the bug

Could or could not be related to #968 and #246 but seems like when you format this document:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .Values.app.name }}

you get

apiVersion: apps/v1
kind: Deployment
metadata:
  name: { ? { .Values.app.name } }

Expected Behavior

Though bracket spacing is acceptable and can be disabled according to #246, question mark should not appear.

Current Behavior

Question mark appeared for some reason.

Steps to Reproduce

1. Use the provided pre-formatted document.
2. Format document
3. The malformed yaml appears.

Environment

• Windows
• Mac
• Linux
• other (please specify)

Start by reproducing the formatter behavior with the provided Kubernetes Deployment YAML in VS Code, then trace the formatting path handling Helm-style double braces. Confirm the change by formatting the example and verifying that bracket spacing may remain configurable but no question mark appears between the opening braces.